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authorKuninori Morimoto <kuninori.morimoto.gx@renesas.com>2012-10-29 01:15:34 -0700
committerSimon Horman <horms@verge.net.au>2012-11-08 17:52:03 +0900
commit94e1f7fbe0478f00ccbdb22d9b269943e1daeba6 (patch)
treefc309d1d6029027d8fc0bc5e0402f39cb7ed0641 /arch/arm/mach-shmobile
parentb5ce635d45fc7da686c9f3071877689d8db1d284 (diff)
downloadop-kernel-dev-94e1f7fbe0478f00ccbdb22d9b269943e1daeba6.zip
op-kernel-dev-94e1f7fbe0478f00ccbdb22d9b269943e1daeba6.tar.gz
ARM: shmobile: marzen: add USB EHCI driver support
This patch supports CN21/CN22 USB 2.0 (port 0/1/2), and enable USB momery on defconfig Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'arch/arm/mach-shmobile')
-rw-r--r--arch/arm/mach-shmobile/Kconfig1
-rw-r--r--arch/arm/mach-shmobile/board-marzen.c108
2 files changed, 108 insertions, 1 deletions
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 4eddca1..4eae11c 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -29,6 +29,7 @@ config ARCH_R8A7779
select ARM_GIC
select CPU_V7
select SH_CLK_CPG
+ select USB_ARCH_HAS_EHCI
config ARCH_EMEV2
bool "Emma Mobile EV2"
diff --git a/arch/arm/mach-shmobile/board-marzen.c b/arch/arm/mach-shmobile/board-marzen.c
index 74c7f0b..707b3bd 100644
--- a/arch/arm/mach-shmobile/board-marzen.c
+++ b/arch/arm/mach-shmobile/board-marzen.c
@@ -34,6 +34,9 @@
#include <linux/spi/sh_hspi.h>
#include <linux/mmc/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ehci_pdriver.h>
+#include <linux/pm_runtime.h>
#include <mach/hardware.h>
#include <mach/r8a7779.h>
#include <mach/common.h>
@@ -172,6 +175,101 @@ static struct platform_device *marzen_devices[] __initdata = {
&usb_phy_device,
};
+/* USB */
+static struct usb_phy *phy;
+static int usb_power_on(struct platform_device *pdev)
+{
+ if (!phy)
+ return -EIO;
+
+ pm_runtime_enable(&pdev->dev);
+ pm_runtime_get_sync(&pdev->dev);
+
+ usb_phy_init(phy);
+
+ return 0;
+}
+
+static void usb_power_off(struct platform_device *pdev)
+{
+ if (!phy)
+ return;
+
+ usb_phy_shutdown(phy);
+
+ pm_runtime_put_sync(&pdev->dev);
+ pm_runtime_disable(&pdev->dev);
+}
+
+static struct usb_ehci_pdata ehcix_pdata = {
+ .power_on = usb_power_on,
+ .power_off = usb_power_off,
+ .power_suspend = usb_power_off,
+};
+
+static struct resource ehci0_resources[] = {
+ [0] = {
+ .start = 0xffe70000,
+ .end = 0xffe70400 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = gic_spi(44),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device ehci0_device = {
+ .name = "ehci-platform",
+ .id = 0,
+ .dev = {
+ .dma_mask = &ehci0_device.dev.coherent_dma_mask,
+ .coherent_dma_mask = 0xffffffff,
+ .platform_data = &ehcix_pdata,
+ },
+ .num_resources = ARRAY_SIZE(ehci0_resources),
+ .resource = ehci0_resources,
+};
+
+static struct resource ehci1_resources[] = {
+ [0] = {
+ .start = 0xfff70000,
+ .end = 0xfff70400 - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ [1] = {
+ .start = gic_spi(45),
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device ehci1_device = {
+ .name = "ehci-platform",
+ .id = 1,
+ .dev = {
+ .dma_mask = &ehci1_device.dev.coherent_dma_mask,
+ .coherent_dma_mask = 0xffffffff,
+ .platform_data = &ehcix_pdata,
+ },
+ .num_resources = ARRAY_SIZE(ehci1_resources),
+ .resource = ehci1_resources,
+};
+
+static struct platform_device *marzen_late_devices[] __initdata = {
+ &ehci0_device,
+ &ehci1_device,
+};
+
+void __init marzen_init_late(void)
+{
+ /* get usb phy */
+ phy = usb_get_phy(USB_PHY_TYPE_USB2);
+
+ shmobile_init_late();
+ platform_add_devices(marzen_late_devices,
+ ARRAY_SIZE(marzen_late_devices));
+}
+
static void __init marzen_init(void)
{
regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
@@ -209,6 +307,14 @@ static void __init marzen_init(void)
gpio_request(GPIO_FN_HSPI_TX0, NULL);
gpio_request(GPIO_FN_HSPI_RX0, NULL);
+ /* USB (CN21) */
+ gpio_request(GPIO_FN_USB_OVC0, NULL);
+ gpio_request(GPIO_FN_USB_OVC1, NULL);
+ gpio_request(GPIO_FN_USB_OVC2, NULL);
+
+ /* USB (CN22) */
+ gpio_request(GPIO_FN_USB_PENC2, NULL);
+
r8a7779_add_standard_devices();
platform_add_devices(marzen_devices, ARRAY_SIZE(marzen_devices));
}
@@ -221,6 +327,6 @@ MACHINE_START(MARZEN, "marzen")
.init_irq = r8a7779_init_irq,
.handle_irq = gic_handle_irq,
.init_machine = marzen_init,
- .init_late = shmobile_init_late,
+ .init_late = marzen_init_late,
.timer = &shmobile_timer,
MACHINE_END
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